{"product_id":"180309-suburban-bruner-orifice-metric-threads-50","title":"180309 Suburban Bruner Orifice (METRIC THREADS) #50","description":"\u003ch1\u003e180309 Suburban Bruner Orifice (METRIC THREADS) #50\u003cbr\u003eSF-42 42F (ABOVE SERIAL NO. 021206467) SH-42 42F, SHD2542 SF-42Q 42FQ\u003c\/h1\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003cstrong\u003eSuburban 180309 Burner Orifice\u003c\/strong\u003e meters the correct LP gas flow into the burner tube on 42k BTU Suburban furnaces. Sized at \u003cstrong\u003e#50\u003c\/strong\u003e, it is calibrated for the highest‑output Suburban furnace class and ensures proper ignition, stable flame shape, and clean combustion. The \u003cstrong\u003emetric thread design\u003c\/strong\u003e is used on later‑production furnaces and all Q\/FQ variants.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eUsing the correct thread type is essential—metric and standard orifices are not interchangeable and will not seat correctly in the burner assembly.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch3\u003eKey functions this orifice supports\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMaintains correct LP gas flow for 42k BTU furnace platforms\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eEnsures stable flame shape and clean combustion\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eSupports reliable ignition and consistent heating output\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003ePrevents soot, yellow flames, and over‑ or under‑firing\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eSF‑Series Furnaces:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eSF‑42\u003c\/strong\u003e \u003cem\u003e(units above serial no. 021206467)\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eSF‑42F\u003c\/strong\u003e \u003cem\u003e(units above serial no. 021206467)\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eSF‑42Q\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eSF‑42FQ\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eSFVH‑Series Furnaces:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eSFVH‑42Q\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eSFVH‑42FQ\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eSH‑Series Furnaces:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eSH‑42\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eSH‑42F\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eSHD‑Series Furnaces:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eSHD‑2542\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eThis is the correct OEM \u003cstrong\u003emetric‑thread #50\u003c\/strong\u003e orifice for all models listed above.\u003c\/span\u003e\u003c\/p\u003e","brand":"Laurelhurst","offers":[{"title":"Default Title","offer_id":43069385703490,"sku":"S180309","price":2.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1071\/8320\/files\/SuburbanBrunerOrifice_bd77a10f-1bb6-4817-bb11-ce1a5b678b17.webp?v=1773007280","url":"https:\/\/hvacpartstore.com\/products\/180309-suburban-bruner-orifice-metric-threads-50","provider":"HVACpartstore","version":"1.0","type":"link"}